Condenser kit



w. DUBILIER conmmsfin kn Filed Sept; 5. 1924 June 24, 1930.

INVENTOR Mum/'1 ,DUB/l x51? ATTORNEY Patented I June 24, 1930 UNITEDSTATES PATENT OFFICE WILLIAM DUBILIER, OF NEW YORK, N. 'Y., ASSIGNOR TODUBILIEB CONDENSER CORPORATION, OI NEW YORK, N. Y., A CORPORATION OFDELAWARE CONDENSER xrr Application filed September 3, 1924. Serial No.785,567.

This invention relates to an improved condenser kit; particularly acondenser kit for enablin one to determine quickly and accurately t ecapacity required by an elecfield; but may be employed with circuits ofany kind in which the exact capacity for efiicient operation must beascertained.

The nature of theinvention is set forth in the followin descriptiontaken with the accompanying drawings, whereon,

Figure 1 is a top view of a condenser kit according to my invention,showing the casin with the top removed; and

liigure 2 is a section along the line .22 of Figure 1, showing thecasing provided with a top or cover in closed position.

The same numerals identify the same partsthroughout.

1 In the particular description of what the drawings present, I employthe numeral 1 to indicate a casing such as a'box of wood or any othersuitable material, which is closed at the bottom, sides and ends and isI provided with a hinged cover 2, at the top,

that may be raised at will, and held shut by any suitable fasteningdevice not shown. Within the casing is aplurality of condensers 3, thecapacity of each of which is known, and these condensers are removablymounted in thecasing in multiple with one another between a pair ofparallel supportingmembers or bars of conductive material 4. These barsextend longitudinally of the the same time electrically connected withcasing and their opposite extremities are bars in position in thecasing 1. The heads of the screws 6 engage the extremities of the bars 4and pass through the casing, carrying on their outer ends washers 7 andbinding nuts 8. At one end of the casing, the screws are of slightlygreater length, so that thumb nuts 9 can be screwed upon them to fastenthereto the conductors of an electric circuit; these longer screws withtheir thumb nuts 9 constituting terminals or binding posts. The two bars4 carry means in the form of clips 10 of conductive material, disposedin transverse alinement, each of the clips carried by one bar beingopposite a similar clip carried by the other bar; the clips 10 beingintended for detachably' engaging the condensers 3, so that one or moreof the condensers 3 can be removed at will; these clips each having ashank 1l,the end 12 of which can be secured by soldering, or in anyother feasible manner, to one of the conductorbars 4.

As indicated in the drawings, the clips 10 are Ushaped and the end ofeach arm of the clips is widened somewhat as indicated at 13. Eachcondenser 3 is of well-known construction and consists of a stack ofsheets of conductive material separated by insulation with cover "platesof insulation, it desired, on opposite faces of the stack, and with theopposite ends of each condenser having bearing plates 14. These bearinga condenser is mountedin the kit by inserting its opposite ends bearingthe clamps 14 between any two opposing clips on the bars 4 so that theclips detachably engage the bearing plates 14, the condenser -isthen atthe members 4 and can be placed in circuit :with' other electricalapparatus by joining conductors to the binding posts carrying the thumbnuts 9. K

In practice, the capacities of all of .the individual condensers 3 beingknown, one can determine by means of this kit the exact capacityrequired in a given circuit or at any point in a given circuit, toobtain the best results and most eflicient operation, all of theindividual condensers being in parallel; and the totalcapacity is, ofcourse, the sum of the capacities of the separate condensers. Anexperimenter can readily determine by taking out some of the condensersand otherwise manipulating the kit, just what number of condensersshould be included in the circuit and what should be the total capacityof the condensers so included, to make the circuit operate to the bestadvantage. As soon as the operator thus finds by trial after havingtaken out some of the individual condensers and inserting others,thatthe circuit is working properly, he can at once ascertain whatcapacity is demanded by the condition of the circuit simply by addingthe separate capacities of the condensers which are left in circuitbetween the bars 4. The kit is thus of great utility and advantage forexperimenting and testing, and because it permits the operator to findthe exact-capacity which.

any circuit needs in order to afford the mode of operation required.

Each of the clips being by virtue of the shank or stem 11 resilientlymounted upon the bars 4, the separate condensers can very easily beinserted and removed as occasion arises.

While the foregoing description sets out the best construction in whichthe principle of my invention can be embodied, I, of course, may varythe details to the full extent indicated by the broad meanings of theterms of the appended claims.

Having described my invention, what I believe to be new and desire tosecure and protect by Letters Patent of the United States is 1. Acondenser kit comprising a casing having a pair of conductor barstherein disposed parallel to each other, clips of conductive material intransverse alinement secured to said bars, and condensers having bearingplates of conductive material at opposite ends thereof and joined toopposite poles of the condensers, so that said condensers can bedetachably engaged by said clips in contact with said plates to connectsaid condensers to said bars.

2. A condenser kit comprising a casing having a pair of conductor barstherein disposed parallel to each other, clips of conductive material intransverse alinementsecured to said bars, and condensers having bearingplates of conductive material at opposite ends thereof and joined to oposite poles of the condensers, so that sai condensers can be detachablyengaged By said

